When selecting Notifications in the lower right hand corner in a newly upgraded Gnome Shell 3.8 from 3.6, nothing happens. Anyway to correct this issue? Otherwise the upgrade to 3.8 went surprisingly well. Thanks.

The only method I have tested, which I had to do on the same type of update to 3.8, I believe got them working by creating a new account and turning auto-login off. Then select the new account and test to see if notifications work under it. This is not really a solution but my result was notifications worked under the new user and then that respectively caused them to work system-wide, in gdm, and on the other user. I haven't since deleted the new account, but that shouldn't matter really if they start working again. I have/tried not to reproduce/d this issue.
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l300lvlMay 9 '13 at 0:13

The only way I found to get the full Gnome 3.8 shell with all the bells and whistles was to add sudo add-apt-repository ppa:gnome3-team/gnome3-staging and sudo add-apt-repository ppa:ricotz/testing.
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chazdgMay 9 '13 at 13:09